<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Map</title>
  </head>

  <body>
    <script>
      //声明 Map
      let m = new Map();

      //添加元素
      m.set("name", "尚硅谷");
      console.log('m',m);
      m.set("change", function () {
        console.log("我们可以改变你个锤子！");
      });
      let key = {
        school: "ATGUIGU",
      };
      m.set(key, ["北京", "上海", "深圳"]);

      console.log(m);
      //删除
      //   m.delete("name");
      //   console.log(m);

      //获取
      // console.log(m.get('change'));

      //清空
      // m.clear();
      //遍历
      for (let v of m) {
        console.log(v);
      }
    </script>
  </body>
</html>
